In a word: The Neumann classic. Three directional characteristics and switchable pre-attenuation ensure suitability for a wide range of applications.
The readers of the SOUND ON SOUND magazine have voted: U 87 Ai - the BEST MICROPHONE, announced during the Winter NAMM show 2012 in Anaheim, California.
The SOS award went to products, that "have made our lives in the studio all the more enjoyable". It is a further evidence for the reputation of the U 87 Ai as the world famous, professional standard studio condenser microphone. Until today the U 87 sets the mark in the microphone industry by which all others are measured.
The U 87 presents a wide range of features and versatility that make it to one of the most desirable mics available. Our users are recognising the microphone immediately by its distinctive design. Well-known for its warm and well balanced characteristics - your perfect choice as vocal microphone for all types of music and speech. The usage as main microphone for orchestra recordings or as spot mic for single instruments make it the most general-purpose microphone - in studios, for broadcasting, film and television.
The U 87* is equipped with a large dual-diaphragm capsule with three directional patterns: omnidirectional, cardioid and figure-8. These are selectable with a switch below the headgrille.
A 10 dB attenuation switch is located on the rear. It enables the microphone to handle sound pressure levels up to 127 dB without distortion.
Furthermore, the low frequency response can be reduced to compensate for proximity effect.
Users recognize the microphone immediately by its distinctive design. It is a good choice for most general purpose applications in studios, for broadcasting, film and television.
The U 87 Ai is used as a main microphone for orchestra recordings, as a spot mic for single instruments, and extensively as a vocal microphone for all types of music and speech.
The present-day circuitry increases the operational headroom of the U 87 Ai by supplying the bias voltages for the capsule through a reduced resistance. The result is a higher sensitivity of 10 dB for identical sound pressure levels, and an improved S/N ratio of 3 dB.
Filter and attenuation
An additional switch at the rear allows to change the microphone's cutoff frequency. This reduces low frequency interference directly at the input of the microphone amplifier.
This setting also compensates for the unavoidable bass boost that occurs with all pressure gradient transducers when they are used at close distance (proximity effect).
The cardioid characteristic maintains a smooth frequency response at a distance of 30 to 40 cm, the figure-8 characteristic even at a distance of 15 to 20 cm.
- Variable large diaphragm microphone
- Pressure-gradient transducer with double membrane capsule
- The studio microphone classic
- Three directional characteristics: omni, cardioid, figure-8
- Switchable low frequency roll-off
- Switchable 10 dB pre-attenuation
- Ideal as main and as support microphone in the most differing recording situations
These are just some of the most common applications. We recommend additional experimentation to gain maximum use from this microphone.
- For universal use
- The classical studio mic for vocalists (soloists and background vocalists)
- Announcer's mic for broadcasting, dubbing, voice-over
- Spot mic for wind instruments, strings (especially cello and double bass), piano, percussion
- Note: To record instruments with very high sound pressure levels we recommend our mics with TLM circuitry
|Acoustical operating principle||Pressure gradient transducer|
|Directional pattern||Omnidirectional, cardioid, figure-8 plus|
|Frequency range||20 Hz ... 20 kHz|
|Sensitivity at 1 kHz into 1 kohm||20/28/22 mV/Pa1)|
|Rated impedance||200 ohms|
|Rated load impedance||1 kohms|
|Equivalent noise level, CCIR2)||26/23/25 dB1)|
|Equivalent noise level, A-weighted2)||15/12/14 dB-A1)|
|Signal-to-noise ratio, CCIR2) (rel. 94 dB SPL)||68/71/69 dB1)|
|Signal-to-noise ratio, A-weighted2) (rel. 94 dB SPL)||79/82/80 dB1)|
|Maximum SPL for THD 0.5%3)||117 dB (cardioid)|
|Maximum SPL for THD 0.5% with preattenuation3)||127 dB|
|Maximum output voltage||390 mV|
|Supply voltage (P48, IEC 61938)||48 V ± 4 V|
|Current consumption (P48, IEC 61938)||0.8 mA|
1)Omnidirectional / cardioid / figure-8
2) according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS
3) measured as equivalent el. input signal